format with gofumpt (#18184)

* gofumpt -w -l .

* gofumpt -w -l -extra .

* Add linter

* manual fix

* change make fmt

modules/auth/pam/pam.go

@@ -27,7 +27,6 @@ func Auth(serviceName, userName, passwd string) (string, error) {
 		}
 		return "", errors.New("Unrecognized PAM message style")
 	})
-
 	if err != nil {
 		return "", err
 	}